1994 GMC Truck stalling

1994 GMC TRUCK
185,000 MILES • V8 • 4WD • AUTOMATIC
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BCAM
  • MEMBER
  • 1 POST
truck runs fine until you put on brake or turn on head lights then it stalls.
Jan 22, 2010 at 6:56 AM
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MICKEY-D
  • CAR REPAIR CONTRIBUTOR
  • 304 POSTS
It sounds like your idle speed while in gear is too low. You may have an idle solenoid not working, or it might be adjusted incorrectly. when you turn an accessory on you load the alternator, thus slowing the engine RPM enough to cause it to stall. Raise the Idle speed.
mickey-d
Feb 23, 2010 at 11:56 AM
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